CN203319717U - Device for recycling heat of re-dissolved stock solution - Google Patents
Device for recycling heat of re-dissolved stock solution Download PDFInfo
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- CN203319717U CN203319717U CN2013203587441U CN201320358744U CN203319717U CN 203319717 U CN203319717 U CN 203319717U CN 2013203587441 U CN2013203587441 U CN 2013203587441U CN 201320358744 U CN201320358744 U CN 201320358744U CN 203319717 U CN203319717 U CN 203319717U
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- heat
- hot water
- heat exchange
- tank
- stoste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model relates to a device for recycling the heat of a re-dissolved stock solution, belonging to the field of aluminum hydroxide production equipment. The utility model particularly relates to a device for recycling the heat of a sodium aluminate solution. The device comprises a dissolving tank (1) and a classifying tank (4) which are connected with each other by a pipeline, and is characterized in that the pipeline between the dissolving tank (1) and the classifying tank (4) is provided with a heat exchange device; the heat exchange device is also connected with a heat exchange cold water input pipe (6) and a heat exchange hot water output pipe (8); the other end of the heat exchange hot water output pipe (8) is connected with a hot water storage tank (7). After the device for recycling the heat of the re-dissolved stock solution is adopted, the sodium aluminate solution can be rapidly cooled to the temperature suitable for crystallization of aluminum hydroxide; the hot water storage tank (7) is used for collecting the heated water, and the collected water can be used for other links of the production of the aluminum hydroxide; the device has the advantages of saving energy, shortening the time for heating water, improving the working efficiency, etc.
Description
Technical field
Heavy molten stoste recycling device for heat, belong to the production of aluminum hydroxide apparatus field, is specifically related to a kind of device of recycling the sodium aluminate solution heat.
Background technology
The aluminium hydroxide raw material is purified, high, the even-grained fine aluminum hydroxide powder of preparation purity, at first need the aluminium hydroxide material dissolution in the liquid caustic soda of high temperature hydrogen sodium oxide, temperature needs 200 ℃ of left and right, aluminium hydroxide reacts the sodium aluminate solution generated and is transferred to seed precipitation tank with sodium hydroxide, then add appropriate aluminium hydroxide seed, crystalline aluminum hydroxide at the temperature of 70 ℃ of left and right, form aluminum hydroxide slime, finally by modes such as spraying dryings, be prepared into fine aluminum hydroxide powder.In said process, sodium aluminate solution need to be down to 70 ℃ of left and right from 200 ℃ of left and right, this part heat all has been wasted, and has caused very large calorific loss, causes the wasting of resources.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of weight economized on resources molten stoste recycling device for heat.
The utility model solves the technical scheme that its technical problem adopts: this heavy molten stoste recycling device for heat, comprise the dissolving tank and the seed precipitation tank that connect by pipeline, it is characterized in that: the pipeline between described dissolving tank and seed precipitation tank is provided with heat-exchanger rig, heat-exchanger rig also is connected with heat exchange cold water inlet pipe and heat exchange hot water delivery pipe, and the heat exchange hot water delivery pipe the other end connects the hot water storage tank.
Also be provided with cartridge filter on pipeline between described dissolving tank and seed precipitation tank.
Described cartridge filter is arranged between heat-exchanger rig and seed precipitation tank.
Described cartridge filter is arranged between dissolving tank and heat-exchanger rig.
Described heat-exchanger rig is spiral-plate heat exchanger.
Compared with prior art, the beneficial effect that the heavy molten stoste recycling device for heat of the utility model has is:
Save energy, increase work efficiency: when utilizing the utility model sodium aluminate solution can be lowered the temperature, utilize the water after the hot water storage tank is collected heating, other links for production of aluminum hydroxide, save the energy, shortened the heating water time used, improved working efficiency.
The accompanying drawing explanation
Fig. 1 is the structural representation of the heavy molten stoste recycling device for heat of the utility model.
Fig. 2 is that cartridge filter is arranged on the schematic diagram between dissolving tank and spiral-plate heat exchanger.
Wherein: 1, dissolving tank 2, spiral-plate heat exchanger 3, cartridge filter 4, seed precipitation tank 5, feed liquid pipeline 6, heat exchange cold water inlet pipe 7, hot water storage tank 8, heat exchange hot water delivery pipe.
Embodiment
Fig. 1 is the most preferred embodiment of the heavy molten stoste recycling device for heat of the utility model, below in conjunction with 1 ~ 2 pair of the utility model of accompanying drawing, is described further.
With reference to accompanying drawing 1: this heavy molten stoste recycling device for heat, comprise dissolving tank 1, spiral-plate heat exchanger 2 and seed precipitation tank 4, dissolving tank 1 is communicated with seed precipitation tank 4 by feed liquid pipeline 5, and feed liquid pipeline 5 is provided with spiral-plate heat exchanger 2.Dissolving tank 1 is round shape with seed precipitation tank 4, and bottom is up big and down small taper.
Also be connected with heat exchange cold water inlet pipe 6 and heat exchange hot water delivery pipe 8 on spiral-plate heat exchanger 2, cold water enters spiral-plate heat exchanger 2 by heat exchange cold water inlet pipe 6, carry out heat exchange with the sodium aluminate solution by spiral-plate heat exchanger 2, cold water in spiral-plate heat exchanger 2 with the sodium aluminate solution countercurrent flow, improve heat transfer effect.
Heat exchange hot water delivery pipe 8 the other ends connect hot water storage tank 7; hot water after heat exchange is stored in hot water storage tank 7 by heat exchange hot water delivery pipe 8; can produce the aluminium hydroxide link at other uses; as rinse the hot water that the interior filter cake of plate-and-frame filter press (not shown in FIG.) is used; can directly use the hot water in hot water storage tank 7; and often can use steam heating in production of aluminum hydroxide; can be directly by the delivery in hot water storage tank 7 to steam boiler; relatively heat cold water; it is faster that steam produces speed, save energy.
Also be provided with cartridge filter 3 on feed liquid pipeline 5 between spiral-plate heat exchanger 2 and seed precipitation tank 4, cartridge filter 3 filters out the impurity in sodium aluminate solution, and the structure that cartridge filter 3 is inner sleeve round shape filter core, after having filtered, by the driving by filter core from the interior proposition of cartridge filter 3, the filter residue in filter core is outwelled.
Principle of work and working process are as follows: aluminium hydroxide raw material and sodium hydroxide liquid caustic soda add in dissolving tank 1 according to a certain percentage, by agitator, both are evenly mixed, aluminium hydroxide is dissolved in liquid caustic soda, aluminium hydroxide reacts with sodium hydroxide and generates sodium aluminate solution, the sodium aluminate solution of high temperature enters spiral-plate heat exchanger 2 through feed liquid pipeline 5, cold water enters spiral-plate heat exchanger 2 by heat exchange cold water inlet pipe 6, carry out heat exchange with the sodium aluminate solution by spiral-plate heat exchanger 2, hot water is stored in hot water storage tank 7 through heat exchange hot water delivery pipe 8.
After spiral-plate heat exchanger 2 heat exchange, the sodium aluminate solution that temperature is low is sent in seed precipitation tank 4 after cartridge filter 3 filters, then add a certain amount of aluminium hydroxide seed to add in seed precipitation tank 4, crystalline aluminum hydroxide is separated out, obtain aluminum hydroxide slime, finally aluminum hydroxide slime is carried out to drying by spray-drying tower (not shown in FIG.), obtain fine aluminum hydroxide powder.
Utilize the filter cake in the hot water injection's plate-and-frame filter press in hot water storage tank 7, avoid reheating hot water and cause energy dissipation, delivery in storage tank 7 can also be heated to manufacture steam to steam boiler, utilize the utility model can save a large amount of energy, shortened heat-up time simultaneously, working efficiency is provided.
With reference to Fig. 2: cartridge filter 3 can be arranged on the feed liquid pipeline 5 between dissolving tank 1 and spiral-plate heat exchanger 2, after being filtered, sodium aluminate solution passes through again spiral-plate heat exchanger 2, prevent that the foreign material in sodium aluminate solution are deposited in spiral-plate heat exchanger 2, cause spiral-plate heat exchanger 2 to stop up.
The above, it is only preferred embodiment of the present utility model, be not the utility model to be done to the restriction of other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (5)
1. the molten stoste recycling device for heat of weight, comprise the dissolving tank (1) and the seed precipitation tank (4) that connect by pipeline, it is characterized in that: the pipeline between described dissolving tank (1) and seed precipitation tank (4) is provided with heat-exchanger rig, heat-exchanger rig also is connected with heat exchange cold water inlet pipe (6) and heat exchange hot water delivery pipe (8), and heat exchange hot water delivery pipe (8) the other end connects hot water storage tank (7).
2. heavy molten stoste recycling device for heat according to claim 1, is characterized in that: on the pipeline between described dissolving tank (1) and seed precipitation tank (4), also be provided with cartridge filter (3).
3. heavy molten stoste recycling device for heat according to claim 2, it is characterized in that: described cartridge filter (3) is arranged between heat-exchanger rig and seed precipitation tank (4).
4. heavy molten stoste recycling device for heat according to claim 3, it is characterized in that: described cartridge filter (3) is arranged between dissolving tank (1) and heat-exchanger rig.
5. heavy molten stoste recycling device for heat according to claim 1, it is characterized in that: described heat-exchanger rig is spiral-plate heat exchanger (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203587441U CN203319717U (en) | 2013-06-21 | 2013-06-21 | Device for recycling heat of re-dissolved stock solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203587441U CN203319717U (en) | 2013-06-21 | 2013-06-21 | Device for recycling heat of re-dissolved stock solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203319717U true CN203319717U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203587441U Expired - Fee Related CN203319717U (en) | 2013-06-21 | 2013-06-21 | Device for recycling heat of re-dissolved stock solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203319717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732116A (en) * | 2020-08-14 | 2020-10-02 | 中铝山东工程技术有限公司 | Aluminium hydroxide redissolution system |
-
2013
- 2013-06-21 CN CN2013203587441U patent/CN203319717U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732116A (en) * | 2020-08-14 | 2020-10-02 | 中铝山东工程技术有限公司 | Aluminium hydroxide redissolution system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20170621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |